Latest Screencasts (page 3)

If you need to keep track of a model's history of changes and switch between versions, consider using the vestal_versions gem like I show in this episode.

Use a virtual attribute to implement a simple tagging feature. In this episode I show you how to assign virtual attributes through a callback instead of a setter method.

JavaScript is essential in the creation of powerful web sites and applications. In Practical and Effective JavaScript, instructor Joe Marini presents the next level of features that experienced developers need to streamline their workflows and introduce dynamic new functions to their projects. Joe teaches tips for improving JavaScript performance, ways...

Have you ever wanted to access helper methods outside of the view layer? In this episode I show you a couple ways to do just that.

This episode will show you how to make a model which isn't based on Active Record. You may want to do this if a resource isn't backed by the database.

If you have a lot of logic associated with the data inside a session, you'll need some central location to put this logic. See how to create a session based model in this episode.

The named_scope method in Rails 2.1 makes performing finds on models very elegant and convenient. See how in this episode.

The scope_out plugin will generate several helpful find methods for you automatically! It's the best way to move the find conditions into your model. Watch this episode for details.

In this third and final episode on complex forms I will show you how to edit a project and multiple tasks all in one form. This includes removing and adding tasks dynamically as well. See the show notes for updated code.

Complex forms often lead to complex controllers, but that doesn't have to be the case. In this episode see how you can create multiple models through a single form while keeping the controller clean.